Step-by-step explanation:
impossible event or a probablity of 0
30 minutes = 5 puzzles
60 minutes = 10 puzzles
90 minutes = 15 puzzles
She will solve 15 puzzles in an hour and 30 minutes
Answer:
jhbgjbfvjbdfkvbdkbnxkhfb kxvnxkvbfvkbchbfcnccfkxkhvchjjj
Step-by-step explanation:
dywfrfvyetwfkfgffyffusofgsjfdgsdlcgslvgsivsfgfisfgisfdyfdic